Financier fired staffer after she 'cheated on him' with her boyfriend

A Wall Street chief executive sacked a female staffer after he found her boyfriend lying in bed in the exclusive New York apartment he rented for her, a court has heard.

Benjamin Wey, 43, of billion-dollar investment firm, New York Global Group, testified that he sacked 25-year-old Hanna Bouveng not because she was "cheating on him", but because her job performance had dropped off, the New York Post reports.

"Isn't it true that you fired Hanna Bouveng two hours after finding a naked black man in her bed?" Ms Bouveng's lawyer David Ratner asked Wey, who took the stand in Manhattan federal court over claims he pressured his Swedish employee into having sex with him.

"Yes," answered Mr Wey.

The investment banker claimed not to have recognised Ms Bouveng's boyfriend when he charged the TriBeCa apartment on April 14, 2014 despite earlier hiring an investigator to research the man.

He gave a number of conflicting reasons as to why he went to Ms Bouveng's home that day, including that he was concerned about her partying ways, he heard there was an intruder and that he feared she was selling top secret information about the company.

Earlier this week, Ms Bouveng's lawyer said Mr Wey lasted just two minutes the first time he bedded his client.